When an object vibrates in simple harmonic motion in the vertical direction, its minimum speed occurs when it

is at the lowest pointis

at the equilibrium point

is at either endpoint

is at the highest point

When an object vibrates in simple harmonic motion in the vertical direction, its minimum speed occurs when it is at either endpoint ... either the highest point or the lowest point.  

At those points, it reverses its direction, so its speed is zero for an instant.

i don’t know what the answer is i wish i

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!